Rosewill RC-220 Silicon Image PCI 2 x eSATA 1.5G non-RAID Controller Card Dual high speed Serial ATA interface ports, each supporting 1st generation Serial ATA data rates 1.5Gb/s 48 bits LBA can Break Capacity-Limit to Support HDD larger than 137GB Independent 256-byte FIFOs (32 bit * 64 deep) per Serial ATA channel for host reads and writes